Evidence map›Paper›PMID 22855395›Full record

ArticleClinical and vaccine immunology : CVI2012

Antibody in middle ear fluid of children originates predominantly from sera and nasopharyngeal secretions.

Ravinder Kaur, Thomas Kim, Janet R Casey, Michael E Pichichero

Open access · diamondAbstract read
In one paragraph

Article in Clinical and vaccine immunology : CVI, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.3field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 26 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Immunoglobulins and Transcription Factors in Otitis Media.International journal of molecular sciences · 2021
    Review
  5. Probing Immune-Mediated Clearance of Acute Middle Ear Infection in Mice.Frontiers in cellular and infection microbiology · 2021
    Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 1 country.

Ravinder KaurRochester General Hospital Research Institute, Center for Infectious Diseases and Immunology, Rochester, New York, USA.
Thomas Kim
Janet R Casey
Michael E Pichichero
University of Rochester · USRochester General Hospital · USRochester Institute of Technology · US

Funding

NTHi Immunity in Young ChildrenR01DC008671 · NIDCD · UNIVERSITY OF ROCHESTER · PI PICHICHERO, MICHAEL E · 2007 to 2016
$5.8M
NIDCD NIH HHS R01 DC008671NIDCD NIH HHS R01 DC08671
6 · The paper itself

Abstract

The human middle ear is devoid of any immunocompetent cells in normal mucosa. We sought to determine the source of antibody present in the middle ear of children. Total IgG, IgA, and secretory IgA antibodies were determined by enzyme-linked immunosorbent assay from the nasopharyngeal, middle ear, and serum samples of children with acute otitis media. The two-dimensional gel electrophoresis pattern of the entire array of IgA antibodies in the nasal wash (NW) and middle ear fluid (MEF) was compared from the MEF and NW samples using isoelectric focusing and Western blotting. The total IgG and IgA antibodies in the MEF and NW samples of 137 children were compared. The ratio of IgG to IgA in the MEF was significantly different (P < 0.008) compared to NW because IgA levels were higher and IgG levels lower in NW. The IgG/IgA ratio of MEF resembled serum consistent with transudation to the MEF. Small amounts of secretory IgA were detected in MEF but the electrophoresis patterns of the entire array of IgA antibodies in the MEF and NW were virtually identical in each child evaluated; thus, IgA in MEF derived predominantly from serum and the nasopharynx by reflux via the Eustachian tube. The IgG/IgA antibody levels in the MEF and the same composition of IgA antibody in the MEF and NW identifies the predominant source of antibody in the MEF as a transudate of serum combined with nasal secretions refluxed from the nasopharynx in children.

Indexed as

Antibodies, BacterialChild, PreschoolEar, MiddleElectrophoresis, Gel, Two-DimensionalEnzyme-Linked Immunosorbent AssayHumansImmunoglobulin AImmunoglobulin A, SecretoryImmunoglobulin GInfantNasopharynxOtitis Media with EffusionAntibodies, BacterialImmunoglobulin AImmunoglobulin A, SecretoryImmunoglobulin G

Identifiers

PMID22855395
PMCPMC3485881
OpenAlexW2122252306

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.